Book Image

Metaprogramming in C#

By : Einar Ingebrigtsen
Book Image

Metaprogramming in C#

By: Einar Ingebrigtsen

Overview of this book

Metaprogramming is an advanced technique that helps developers to automate repetitive tasks, generate scalable code, and enhance productivity in software development. Metaprogramming in C# is a comprehensive guide that will help you reap the full potential of metaprogramming in .NET runtime. You’ll start by learning about the .NET runtime environment and how you can use it to become a more productive developer. You'll learn how to infer types using reflection, use attributes, and create dynamic proxies. You’ll also explore the use of expressions to create and execute code and how to take advantage of Dynamic Language Runtime. But that's not all! You’ll also learn to go beyond inheritance and use method signature conventions to create easily maintainable code. Finally, you’ll dive into the world of compiler magic with Roslyn, where you'll discover how to use Roslyn to generate code, perform static code analysis, and write your own compiler extensions. By the end of this book, you’ll have a deep understanding of metaprogramming concepts and how to apply them to your C# code. You’ll be able to think about types, use attributes and expressions to generate code, and apply crosscutting concerns to improve code quality.
Table of Contents (25 chapters)
1
Part 1:Why Metaprogramming?
5
Part 2:Leveraging the Runtime
12
Part 3:Increasing Productivity, Consistency, and Quality
18
Part 4:Compiler Magic Using Roslyn

Authorization

Authorization is a critical concern for many software systems, as it is important to ensure that users and applications only have access to the resources and functionality that they are authorized to use. AOP can be a powerful tool for implementing authorization behavior, as it allows developers to encapsulate authorization logic and apply it consistently throughout the system.

One approach to implementing authorization with AOP is to use join points to filter down to specific namespaces in C# code. Join points are points in the code where an aspect can be applied, such as method calls, field accesses, or object creation. By using join points to filter down specific namespaces, developers can apply authorization logic only to the relevant parts of the system, reducing the risk of errors or inconsistencies.

In AOP, a pointcut is a specific location in the source code where an aspect should be applied. In other words, it’s a way to define the set of join points...